How do you replace a headlight on a 2001 Saab 9-5 wagon?

To replace a headlight on a 2001 Saab 9-5 wagon, first, open the hood and locate the headlight assembly. Remove the plastic cover or housing by unscrewing any retaining screws or clips. Disconnect the electrical connector from the old bulb, then twist the bulb socket counterclockwise to remove the old bulb. Insert the new bulb, reconnect the electrical connector, and reassemble the headlight housing.